238536870497 has 2 divisors, whose sum is σ = 238536870498. Its totient is φ = 238536870496.

The previous prime is 238536870487. The next prime is 238536870587. The reversal of 238536870497 is 794078635832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126505416976 + 112031453521 = 355676^2 + 334711^2 .

It is a cyclic number.

It is not a de Polignac number, because 238536870497 - 2¹⁸ = 238536608353 is a prime.

It is not a weakly prime, because it can be changed into another prime (238536870487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119268435248 + 119268435249.

It is an arithmetic number, because the mean of its divisors is an integer number (119268435249).

Almost surely, 2^238536870497 is an apocalyptic number.

It is an amenable number.

238536870497 is a deficient number, since it is larger than the sum of its proper divisors (1).

238536870497 is an equidigital number, since it uses as much as digits as its factorization.

238536870497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 238536870497 in words is "two hundred thirty-eight billion, five hundred thirty-six million, eight hundred seventy thousand, four hundred ninety-seven".